diff --git a/curriculum/challenges/english/10-coding-interview-prep/rosetta-code/s-expressions.md b/curriculum/challenges/english/10-coding-interview-prep/rosetta-code/s-expressions.md
index e7ed94741c..2fe01bce1c 100644
--- a/curriculum/challenges/english/10-coding-interview-prep/rosetta-code/s-expressions.md
+++ b/curriculum/challenges/english/10-coding-interview-prep/rosetta-code/s-expressions.md
@@ -48,7 +48,7 @@ assert(typeof parseSexpr === 'function');
 assert.deepEqual(parseSexpr(simpleSExpr), simpleSolution);
 ```
 
-`parseSexpr('(data1 data2 data3)')` should return an array with 3 elements.
+`parseSexpr('((data "quoted data" 123 4.5) (data (!@# (4.5) "(more" "data)")))')` should return `[['data', '"quoted data"', 123, 4.5], ['data', ['!@#', [4.5], '"(more"', '"data)"']]]`.
 
 ```js
 assert.deepEqual(parseSexpr(basicSExpr), basicSolution);